| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,500 |
| South America Map Quiz | 0 | - | 5.00 | 1,556,792 |
| Word Chain - South America | 0 | - | 4.51 | 24,007 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,490 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,965 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,800 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,674 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,759 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,639 |
| North America Map Quiz | 0 | - | 4.98 | 252,117 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,982 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,290 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,657 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,570 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,796 |
| Famous People from South America | 0 | - | 4.15 | 22,107 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,049 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,833 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,201 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 65,068 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,893 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,831 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,952 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,014 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,273 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,819 |
| States of Mexico | 0 | - | 4.96 | 178,302 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,862 |
| States of Brazil | 0 | - | 4.97 | 89,723 |
| Central American Countries | 0 | - | 4.98 | 157,354 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,609 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 150,642 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,384 |
| History of Mexico | 0 | - | 4.52 | 15,365 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,542 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,854 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,089 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 161,058 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,236 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,693 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,826 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,654 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,992 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 222,603 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,687 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,783 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,094 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,713 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,382 |
| Australian Capitals | 0 | - | 4.92 | 62,834 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,788 |
| Famous Caribbean People | 0 | - | 4.37 | 12,662 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,151 |
| Territories of the United States | 0 | - | 4.80 | 52,629 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,890 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 176,114 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,526 |
| Name a Valid Answer - United States #1 | 0 | - | 4.62 | 94,400 |
| New York City Geography | 0 | - | 4.43 | 33,188 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,879 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,734 |
| Official European Union Languages | 0 | - | 4.97 | 239,811 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,659 |
| Europe Map Quiz | 0 | - | 5.00 | 4,788,552 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,459 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,734 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,916 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,575 |
| Asia Map Quiz | 0 | - | 4.99 | 925,280 |
| Africa Map Quiz | 0 | - | 5.00 | 2,128,818 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,469 |
| Australia Map Quiz | 0 | - | 4.95 | 346,180 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,319 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,449 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,862 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 44,133 |
| South American Geography Quiz #1 | 0 | - | 4.63 | 32,907 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,630 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,453 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,774 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,730 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,184 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,938 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,226 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,830 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,471 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,519 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,870 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,374 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,274 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,587 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 83,078 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,284 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 47,095 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,433 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,969 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,924 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,827 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,255 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,323 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,149 |
| The Only European Country ... | 0 | - | 4.91 | 219,047 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,537 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,058 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,956 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,349 |
| Countries of Africa | 0 | - | 5.00 | 2,560,199 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,868 |
| African East Coast | 0 | - | 4.96 | 96,781 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,635 |
| Australian States and Territories | 0 | - | 4.96 | 142,874 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,505 |
| Australia True or False | 0 | - | 4.87 | 57,152 |
| Flags of North and South America | 0 | - | 4.99 | 377,082 |
| South American Physical Geography | 0 | - | 4.58 | 18,405 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,784 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,197 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.62 | 45,267 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,273 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,287 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,178 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,507 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,258,292 |
| Celtic Nations | 0 | - | 4.61 | 47,099 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,734 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,518 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,067 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,822 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,778 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,029 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,770 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,850 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,458 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,192 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,798 |
| Slavic Countries | 0 | - | 4.96 | 112,378 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,696 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,451 |
| Counties of England | 0 | - | 4.97 | 803,006 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,768 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,437 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,830 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,529 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,924 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,162 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,831 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,327 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,091 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,643 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.92 | 50,613 |
| Countries of the Middle East | 0 | - | 4.96 | 202,968 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,742 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,521 |
| Flags of Africa Quiz | 0 | - | 5.00 | 477,680 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,384 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,731 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,275 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 34,139 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,620 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,272 |
| African Island Countries | 0 | - | 4.96 | 102,453 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,645 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,671 |
| Flags of Oceania | 0 | - | 5.00 | 262,751 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.95 | 27,725 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 146,527 |
| Australia Country Quiz | 0 | - | 4.43 | 69,839 |
| Australia... or New Zealand? | 0 | - | 4.83 | 62,014 |
| Regions of New Zealand | 0 | - | 4.84 | 28,746 |
| The Only American Country ... | 0 | - | 4.92 | 122,222 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,678 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,078 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,263 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,198 |
| Which Island in the United States? | 0 | - | 4.29 | 29,786 |
| American Foods | 0 | - | 3.66 | 39,441 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,155 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,332 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,821 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,447 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,983 |
| Old West History | 0 | - | 4.34 | 15,303 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,536 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,987 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,783 |
| US States Quiz | 0 | - | 5.00 | 16,998,157 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,736 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,795 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,721 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,539 |
| US States with the Most Executions | 0 | - | 4.51 | 26,424 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,166 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,270 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,248 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,823 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,914 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,255 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.07 | 28,903 |
| Canada Decoder | 0 | - | 4.07 | 18,771 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,522 |
